参数资料
| 型号： | PCX7447AVGH1000NB |
| 厂商： | Atmel |
| 文件页数： | 5/52页 |
| 文件大小： | 0K |
| 描述： | IC MPU 32BIT 1000MHZ 360CBGA |
| 标准包装： | 44 |
| 处理器类型： | PowerPC 32-位 RISC |
| 速度： | 1.0GHz |
| 电压： | 1.1V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 360-CBBGA 裸露焊盘 |
| 供应商设备封装： | 360-CBGA（25x25） |
| 包装： | 托盘 |
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13
0833E–HIREL–01/07
e2v semiconductors SAS 2007
PC7447A
Figure 6-3.
Package Exploded Cross-sectional View with Several Heat Sink Options
6.4.4
Thermal Interface Materials
A thermal interface material is recommended at the package lid-to-heat sink interface to minimize the
thermal contact resistance. For those applications where the heat sink is attached by spring clip mecha-
nism, Figure 6-4 on page 14 shows the thermal performance of three thin-sheet thermal-interface
materials (silicone, graphite/oil, floroether oil), a bare joint, and a joint with thermal grease as a function
of contact pressure.
As shown, the performance of these thermal interface materials improves with increasing contact
pressure.
The use of thermal grease significantly reduces the interface thermal resistance. That is, the bare joint
results in a thermal resistance approximately seven times greater than the thermal grease joint.
Often, heat sinks are attached to the package by means of a spring clip to holes in the printed-circuit
board (see Figure 6-3 on page 13). Therefore, synthetic grease offers the best thermal performance,
considering the low interface pressure, and is recommended due to the high power dissipation of the
PC7447A. Of course, the selection of any thermal interface material depends on many factors – thermal
performance requirements, manufacturability, service temperature, dielectric properties, cost, and so on.
Printed-Circuit Board
Thermal Interface
Material
Heat Sink
Clip
Heat Sink
HCTE Package
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相关代理商/技术参数 |
参数描述 |
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| PCX7447AVGH1167NB | 功能描述:IC MPU 32BIT 1167MHZ 360CBGA RoHS:否 类别:集成电路 (IC) >> 嵌入式 - 微处理器 系列:- 标准包装:60 系列:SCC 处理器类型:Z380 特点:全静电 Z380 CPU 速度:20MHz 电压:5V 安装类型:表面贴装 封装/外壳:144-LQFP 供应商设备封装:144-LQFP 包装:托盘 |
| PCX7448MGH1000NC | 制造商:e2v technologies 功能描述:MPU RISC 32BIT 0.09UM 1GHZ 1.5V/1.8V/2.5V 360HITCE CBGA - Trays |
| PCX7448MGH1250NC | 制造商:e2v technologies 功能描述:PCX7448MGH1250NC - Trays |
| PCX7448VGH1000NC | 制造商:e2v technologies 功能描述:PCX7448VGH1000NC - Trays |
| PCX7448VGH1250NC | 制造商:e2v technologies 功能描述:MPU RISC 32BIT 0.09UM 1.25GHZ 1.5V/1.8V/2.5V 360HITCE CBGA - Trays |
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